if(buff[0]='Q') C Question

Sorry typing error...
 if(buff[0]=='Q')
Please try a example....first while loop is okay. Second time onwards it crashes

if(buff[0]=='Q') //Partially O.k, loops forever...
          return 0; //It should return....
Please let me know why the above code does not return ...it loops for ever. If Q is found it should return.

Stopped reading when I saw 'while(1)'

Years ago, any decent compiler would have warned you that the condition was a constant.

for(;;) was the way to code an infinite loop in C.

Maybe the C++ guys/girls[wouldn't that be welcome] will correct me and drag me into the 21st century?

memset(buff, ' ', 50);
will make buff[0]==' '
' ' != 'Q' so buff[0]=='Q' will always be false

buff[0]='Q' will always be true

if you do something else in the
      ......
to change buff[0], perhaps you also do something else to cause a crash

BTW, when you write

   if ('Q' = buff[0])

the compiler will catch the error,
because you try to assign somthing to a constant.

sudarshantk, you really have to show us more code, and explain more about your problem. I have asked for that a few times already.

Can you show the EXACT and COMPLETE code you are using ?

in your code, your function won't return 0. because you use memset(buf,' ',50) and set all buf to ' ' and buf wont have 'Q'!!
please tell me what do you want to do? if you tell me your desired code, i can help you better.
regards

>> I see no such requests in this thread.

Take a look at his previous few questions, where my requests for clarification were ignored ;) And I wasn't shouting, merely stressing certain important words.

As long as I watch questions at expert-exchange Infinity08 has everytime helped, even when he was short of time. So I think questions should be as exact as possible.

Regards

Andy

Dear PaulCaswell, forgive me but I want to tell something, not blame me for this, just I tell it for fun...

You recently become moderator and you need to show us a bit you are a moderator, that's why you blamed Infinity08, otherwise his comment have no problem, he was right, question is completely general and he can't get right answer with such question.... :P

Don't become angry, I just joked :P But I understood you are a moderator :D :p :)

Thank you for the support, both, but there's no problem. Paul has been around longer than me ;) And he's very good at keeping us all in check, and focused on helping out and providing a good atmosphere for everybody. That is very much appreciated btw, Paul. Don't think that's said enough.
My post might have sounded a bit harsh, but it sure wasn't meant that way. It just seemed my advice that more information is needed to get the best help possible was overlooked twice - I didn't want it to get overlooked a third time ;)

Guys, Let me close this issue. I will open a new discussion topic, I will provide some additional code.
Since it is getting too long.